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How do you create a random string that's suitable for a session ID in PostgreSQL?
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random() gets called length times (like in many of the other solutions). Is there a more efficient way to choose from 62 characters each time? How does this perform compared to md5()?
– ma11hew28
Feb 1...
git diff file against its last change
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This does exist, but it's actually a feature of git log:
git log -p [--follow] [-1] <path>
Note that -p can also be used to show the inline diff from a single commit:
git log -p -1 <commit>
Options used:
-p (also -u or --patch) is hidd...
Locate the nginx.conf file my nginx is actually using
...g on a client's server where there are two different versions of nginx installed. I think one of them was installed with the brew package manager (its an osx box) and the other seems to have been compiled and installed with the nginx packaged Makefile. I searched for all of the nginx.conf files on t...
ContextLoaderListener or not?
... the servlet's context, that stick with that, it's simpler.
Yes, the generally-encouraged pattern is to keep non-web stuff in the webapp-level context, but it's nothing more than a weak convention.
The only compelling reasons to use the webapp-level context are:
If you have multiple DispatcherSe...
instanceof Vs getClass( )
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@overexchange - You cannot validly infer that all use of instanceof (for example) is bad design. There are situations where it may be the best solution. Same for getClass(). I will repeat that I said "overuse" and not "use". Every case needs to be judged on its merit...
Associativity of “in” in Python?
I'm making a Python parser, and this is really confusing me:
4 Answers
4
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Clean ways to write multiple 'for' loops
For an array with multiple dimensions, we usually need to write a for loop for each of its dimensions. For example:
16 An...
Shell script to delete directories older than n days
..., you can replace the ; with + and it will do the equivalent of the xargs call for you, passing as many files as will fit on each exec system call:
find . -type d -ctime +10 -exec rm -rf {} +
share
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How to uglify output with Browserify in Gulp?
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You actually got pretty close, except for one thing:
you need to convert the streaming vinyl file object given by source() with vinyl-buffer because gulp-uglify (and most gulp plugins) works on buffered vinyl file objects
So you...
JavaScript string encryption and decryption?
I'm interested in building a small app for personal use that will encrypt and decrypt information on the client side using JavaScript. The encrypted information will be stored in a database on a server, but never the decrypted version.
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